Home / 866,311.20-1,299,466.80-656,359.20

Finding the Fourth Proportional to 866,311.20, 1,299,466.80 and 656,359.20

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Solution

The fourth proportional to 866,311.20, 1,299,466.80 and 656,359.20 is: 984,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,311.20 : 1,299,466.80 = 656,359.20 : x
  2. Step 2: Convert to fraction form
    866,311.20/1,299,466.80 = 656,359.20/x
  3. Step 3: Cross multiply
    866,311.20x = 1,299,466.80 × 656,359.20
  4. Step 4: Simplify right side
    866,311.20x = 852,916,989,274.56
  5. Step 5: Solve for x
    x = 852,916,989,274.56/866,311.20
  6. Step 6: Final answer
    x = 984,538.80

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.